Ritter, C. (1968). The essence of Plato's philosophy. Russell & Russell.
Chicagoスタイル(17版)引用形式Ritter, Constantin. The Essence of Plato's Philosophy. New York: Russell & Russell, 1968.
MLA(9版)引用形式Ritter, Constantin. The Essence of Plato's Philosophy. Russell & Russell, 1968.
警告: この引用は必ずしも正確ではありません.